But I promised a post per day this month, didn't I? Blogtoberfest and all that.
I showed someone this screw punch today and they were a bit impressed. I must say it was gadget-love at first sight the first time I saw one... I forgot to take a photo of it in my post about pattern card (for which it's EXTREMELY USEFUL!), so HERE 'TIS!!
If a picture tells a thousand words... here's just over 3000 words to explain what a screw punch does!
You wouldn't need to spend a fortune on a ritzy patternmaking tool unless you're an industrial patternmaker - but if you're making a few cardboard patterns it's good to have something that does the trick. I've seen all sorts of punches like this in the papercrafts sections of Officeworks and Spotlight.